Which of the following is a valid mole ratio from the balanced equation 2C3H6 + 902 → 6CO2 + 6H20? (4 points)
1) 1 mol C3H6/2 mol CO2
2) 6 mol H2O/9 mol O2
3) 2 mol CH3H6/6 mol O2
4) 3 mol H2O/2 mol CO2

Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have